How to control title-bar, tool-bar of windows and icons of menu-bar

[tofu]

I also changed the settings of Appearance following the user guide.

DPI scaling

Qubes OS passes on dom0’s screen resolution to VMs (this can be seen in the output of xrandr) but doesn’t pass on dom0’s dpi value. Recent distributions have automatic scaling depending on the screen’s resolution (eg. in fedora if the screen resolution is at least 192dpi and the screen height is greater than 1200 pixels) but for a variety of reasons one may have to set a custom dpi scaling value. Dom0 The simplest way to set dpi scaling in dom0 is to use the desktop environment’s custom dpi fea…

I set appearance → Settings → Window Scaling ->“2x”.